#!/usr/bin/python

def func(a, b=5, c=4):
    print 'a is',a, 'b is',b, 'c is',c

print "func(4,7)"
func(4, 7)

print "func(c=5, b=3, a =8)"
func(c=5, b=3, a=8)

print "func(a=4, c=56)"
func(a=4, c=56)
